Comments, Questions, Anything:

When a listing expires and a seller decides to put the listing BACK on the market with the same realtor, do the days on market reset?

Answer: Maybe

If certain conditions are met, the DOM can start over at zero.

The listing needs to be off the market (expired) for 30 days.
A new listing with a new MLS number must released after the 31+ day.

*Using the Back On Market function will always resume the Days on Market.
*releasing a new listing within the 30 day time frame will resume the Days on Market